三,socket通信
1.http://blog.csdn.net/kongxx/article/details/7288896这个人写的关于socket通信不错,循序渐进式的讲解,用代码示例说明,运用流和socket进行远程通讯
2.最简单的socket是一个服务端对应一个客户端
server的写法
- ServerSocket server = new ServerSocket(10000);
- Socket socket = server.accept();
- BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
- PrintWriter out = new PrintWriter(socket.getOutputStream());
- while (true) {
- String msg = in.readLine();
- System.out.println(msg);
- out.println("Server received " + msg);
- out.flush();
- if (msg.equals("bye")) {
- break;
- }
- }
- socket.close();
client的写法
- Socket socket = new Socket("localhost", 10000);
- BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
- PrintWriter out = new PrintWriter(socket.getOutputStream());
- BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
- while (true) {
- String msg = reader.readLine();
- out.println(msg);
- out.flush();
- if (msg.equals("bye")) {
- break;
- }
- System.out.println(in.readLine());
- }
- socket.close();
3.复杂一点的就是多个客户端同时访问服务器。在客户端使用循环启动多个客户端访问同一服务端,在服务端只要server.accept()一接收到就新建线程,然后把把上面的读写操作放进线程内处理。
4.如果要利用socke传递对象,就要让对象实现Serializable 序列化接口,使用ObjectInputStream和ObjectOutputStream进行序列化和反序列化
server的写法
- ObjectInputStream is = null;
- ObjectOutputStream os = null;
- try {
- is = new ObjectInputStream(new BufferedInputStream(socket.getInputStream()));
- os = new ObjectOutputStream(socket.getOutputStream());
- Object obj = is.readObject();
- User user = (User)obj;
- System.out.println("user: " + user.getName() + "/" + user.getPassword());